/*!	 sphere_distort.h
**	 Header file for implementation of the "Spherize" layer
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**	Copyright (c) 2008 Chris Moore
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifndef __SYNFIG_SPHERE_DISTORT_H
#define __SYNFIG_SPHERE_DISTORT_H

#include <synfig/layer.h>
#include <synfig/vector.h>
#include <synfig/rect.h>

namespace synfig
{
namespace modules
{
namespace lyr_std
{

class Spherize_Trans;

class Layer_SphereDistort : public Layer
{
    SYNFIG_LAYER_MODULE_EXT
    friend class Spherize_Trans;

private:

    // Parameter (Vector)
    ValueBase param_center;
    // Parameter (double)
    ValueBase param_radius;
    // Parameter (double)
    ValueBase param_amount;
    // Parameter (int)
    ValueBase param_type;
    // Parameter (bool)
    ValueBase param_clip;

    Rect bounds;

    void sync();

public:

    Layer_SphereDistort();

    virtual bool set_param(const String & param, const ValueBase &value);

    virtual ValueBase get_param(const String & param)const;

    virtual Color get_color(Context context, const Point &pos)const;

    virtual bool accelerated_render(Context context, Surface *surface, int quality, const RendDesc &renddesc, ProgressCallback *cb)const;
    virtual bool accelerated_cairorender(Context context, cairo_t *cr, int quality, const RendDesc &renddesc, ProgressCallback *cb)const;
    Layer::Handle hit_check(Context context, const Point &point)const;

    virtual Rect get_bounding_rect()const;

    virtual Vocab get_param_vocab()const;
    virtual etl::handle<Transform> get_transform()const;

protected:
    virtual RendDesc get_sub_renddesc_vfunc(const RendDesc &renddesc) const;
}; // END of class Layer_SphereDistort

}; // END of namespace lyr_std
}; // END of namespace modules
}; // END of namespace synfig

#endif